| 释义 |
red lake C pigment red lake C pigment[′red ¦lāk ′sē ‚pig·mənt] (materials) An organic azo pigment; made by coupling the diazonium salt (barium or sodium) of ortho-chloro-meta-toluidine-para-sulfonic acid with β-naphthol; used to color inks, plastics, and rubbers. |